Railway-sleeper.



J.' MOCULLOCH.

RAILWAY SLEEPER.

APPLIOATION FILED MAR. 2o, 1911.

1 ,O4 1 1 34. Patented Oct. 15, 1912.

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RAILWAY-SLEEPER.

Specification of Letters Eatent.

Patented Oct. 15,1912.

Application filed March 20, 1911. Serial No. 615,525.

To all whom may concern:

Be it known that I, JOHN McCULLocn, a British subject, residing atLostock-Gralam, county of Chester', England, have invented certain newand useful Improvements in Railway-Sleepers, of which the following is aspecification.

This invention relates to improvements in railway sleepers.

It consists of a railway sleeper composed of wood or cork saw dust orother fiber, magnesium oxid and farinaincorporated together, with asolution of chlorid of magnesium or hydrochloric acid, or lilienna as abinding material the whole being compressed under intense pressure andprovided with corner pieces to prevent the sleeper from splitting, andreinforcing members embedded therein.

The invention will be described with reference to the accompanyingdrawings.

Figure l is a perspective View of part of the sleeperl showing thecorner pieces in position. Fig. 2 is a perspective view of the cornerpieces with the tie rods attached. Fig. 3 is a side view of the sleeperpartly in section. Fig. l is a plan of the sleeper. Fig. 5 is a sideview of a modification. Fig. 6 a detail view partly in section showingin plan the holes for receiving the dogs fitted with metal bushes. Fig.7 is a section of same.

The sleeper A is composed of wood or cork saw dust or other fiber,magnesium oxid and farina incorporated together with a solution ofchlorid of magnesium or hydrochloric acid and compressed under anintense pressure.

The following proportion of the mixture is found to give good resultsz-Vood saw dust 30%, magnesium oxid 25%, farina 10%, magnesium ehlorid35%.

Metal corner pieces B of the shape shown are placed at each corner ofthe sleeper to prevent it splitting and to hold in position the cross ortie bars b. The metal corner pieces B and the tie rods o are placed inposition before the composition forming the sleeper is compressed sothat on the composition being compressed these are firmly embedded inthe sleeper. The corner pieces B are provided with holes b through whichthe ends of the tie bars o pass and are then bent over into hook shapeto hold them firmly in position.

Grooves c are formed in the top surface of the sleeper for the rails torest in and to prevent the rails spreading out. The rails are held inposition by square dogs driven into the round holes (l. Or the holes Zmay be fitted with metal bushes Z as shown in Figs. G and 7 to preventthe dogs from splitting the material.

Instead of tie bars strips of wire netting b2 may be stretched acrossfrom the corner pieces as shown in Fig. 5.

Vhat I claim as my invention and desire to protect by Letters Patent isl. The combination with a composition tie, of a metal end plate, saidplate being bent at right angles along a longitudinal central line,one-half of the plate engaging a surface face of the tie, and the otherhalf of the plate over-lapping a portion of the end of the tie, saidplate having inwardly extending flanges along its opposite sides, saidflanges being' embedded in the tie, and being also at right angles toeach other, said plate extending transversely across the tie from oneside to the other.

2. The combination with a composite tie, of angled transverselyextending end plates fitting respectively upper and lower edges of thetie, the said marginal portions of said plates being' bent at an angleand embedded in the tie, and metal connecting' rods eX- tendinglongitudinally through the tie, said rods crossing each other in thecenter of the tie, each of said rods being secured at one end to a platefitted upon a lower edge of the tie, and secured at the opposite end toa plate fitted upon an upper edge of the tie.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

JOHN MCoULLoor'I.

Witnesses G-no. H. OBRIEN, lHARRY BARNFATHEK Copies of th'is patent maybe obtained for five cents each, by addressing the Commissioner ofPatents, Washington, D. C.

